Pressurised gas tank wagon, type Zags, of the railway company of the German Democratic Republic (Deutsche Reichsbahn).

■ Version featuring short sunroof

Pressurised gas tank wagons are specially designed to transport liquefied, deep-frozen or dissolved gases. Loading and unloading takes place via devices that can be operated from the ground (bottom discharge). The striking, approx. 30cm-high orange vertical stripe in the middle of the tank is typical for European wagons.